/*
 * Copyright (c) 2023 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**---
 description: we can write an index signature with template string pattern type
 module: ESNext
 isCurrent: true
 ---*/


import { Assert } from '../../../suite/assert.js'

interface I {
    name: string;
    age: number;
}
interface I2 extends I {
    [optName: number]: any;
}
let a: I2 = {
    name: "wangcai",
    age: 20
};
Assert.isString(a.name);
Assert.isNumber(a.age);